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Finding the Fourth Proportional to 188,406.56, 260,015.52 and 107,859.35

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Solution

The fourth proportional to 188,406.56, 260,015.52 and 107,859.35 is: 148,854.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,406.56 : 260,015.52 = 107,859.35 : x
  2. Step 2: Convert to fraction form
    188,406.56/260,015.52 = 107,859.35/x
  3. Step 3: Cross multiply
    188,406.56x = 260,015.52 × 107,859.35
  4. Step 4: Simplify right side
    188,406.56x = 28,045,103,677.03
  5. Step 5: Solve for x
    x = 28,045,103,677.03/188,406.56
  6. Step 6: Final answer
    x = 148,854.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.